This usually means the dependency pack was not installed correctly or is being overwritten. Ensure no other mods are conflicting with these assets in your mod manager.
Open your mod manager's Load Order tab and ensure the HCG_-_Baijis_Dependencies.esp (or similar) is positioned high in the list, above the main HCG creature or quest mods. HCG_-_Baijis_Dependencies.rar
While "Baijis" specifically often refers to internal asset names or specific creature packs (like the "Baiji" dolphins or related mythical creatures), this .rar file is designed to provide the necessary shared assets (meshes, textures, and scripts) required for their other mods to function correctly. This usually means the dependency pack was not
This dependency file must be loaded any mod that requires it. While "Baijis" specifically often refers to internal asset
If your game crashes on startup after adding a new HCG mod, it is likely because this dependency pack is missing or disabled. Project Mojave — Fallout 4 : Capital Wasteland
In your mod manager, ensure the mod is "Enabled" and the corresponding plugin is "Active" in your plugins list.